Most people buy a stock in hopes that it will rise in value and make them richer. But you can also make money on a stock that you believe will soon tumble.

When you “short” a stock, you’re gambling that the price will decline at some point in the future. Watch this video from the Khan Academy to learn the basics of shorting a stock — and what can happen if your guess about the stock’s future is wrong.

Have you ever shorted a stock? Share your experience by commenting below or on our Facebook page.